I'll wait before I truly see something impressive on either system. Otherwise GBAsp >>> all (regardless of DS' backward capabilitiy... not wasting my $)
http://www.gamesarefun.com/news.php?newsid=4010 Interesting article. The movies of the UMD discs ejecting are surprising to say the least! The problems don't seem to be very widespread but with the small supply of PSPs if you do get a faulty one replacing it is going to be troublesome.
My girlfriend got me a DS. Mario is cool. It's hard using the screen as controller at first, but I got all 150 stars, so it's possible.
The PSP screen is fricking amazing... as much as I like the DS functionality, the PSP just looks so amazing when playing... each of them are good in their own way though... PSP just has much more "WOW" factor, and I think that'll really sell the console, especially in the US, where shallowness is a fact of life... =P